1,3,5,7-Tetramethyl-1,3,5,7-tetrasilaadamantane is the organosilicon compound with the formula (CH2)6(SiCH3)4. It is a colorless solid that is soluble in organic solvents. The compound is one of the iconic carbosilanes, featuring alternating −Si−C−Si−C− linkages.[2] Otherwise it can be described as a diamondoid cluster. It arises as one of many products from the pyrolysis of tetramethylsilane. A more efficient route involves the reaction of the cyclic carbosilane (CH2Si(CH3)2)3 (1,1,3,3,5,5-hexamethyl-1,3,5-trisilacyclohexane) with aluminium tribromide.[3]
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3D model (JSmol)
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PubChem CID
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CompTox Dashboard (EPA)
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Properties | |
C6H24Si4 | |
Molar mass | 208.598 g·mol−1 |
Appearance | colorless solid |
Melting point | 244 °C (471 °F; 517 K) [1] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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![](http://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Heptasila_diadamantane.svg/220px-Heptasila_diadamantane.svg.png)
References
edit- ^ Fritz, G.; Haase, R.; Kummer, D. (1969). "Bildung siliciumhaltiger Verbindungen, XXVII. Carbosilane mit vier Si-Atomen". Zeitschrift für Anorganische und Allgemeine Chemie. 365 (1–2): 1–13. doi:10.1002/zaac.19693650102.
- ^ Fritz, Gerhard; Matern, Eberhard (1986). Carbosilanes. doi:10.1007/978-3-642-70800-8. ISBN 978-3-642-70802-2.
- ^ Frye, Cecil L.; Klosowski, Jerome M.; Weyenberg, Donald R. (1970). "1,3,5,7-Tetrasilaadamantanes. Facile synthesis via catalyzed ligand redistribution". Journal of the American Chemical Society. 92 (21): 6379–6380. doi:10.1021/ja00724a069.